EP 0086432 B1 19901219 - SAFETY CIRCUIT FOR A FREE PROGAMMABLE INDUSTRIAL ROBOT
Title (en)
SAFETY CIRCUIT FOR A FREE PROGAMMABLE INDUSTRIAL ROBOT
Publication
Application
Priority
DE 3205672 A 19820217
Abstract (en)
[origin: EP0086432A2] Industrial robots represent a danger to operators exceeding that which is normal with working and processing machines, resulting from the free programmability of the movements. These dangers are normally averted by protective devices which, however, have to be deactivated for programming or maintenance of the industrial robot. To reduce the danger, a creep speed and/or jog control is/are usually provided as means of control, which does not however rule out the possibility of uncontrolled movements being triggered by faults or operating errors. According to the invention, for such instances a safety circuit is provided, which is switched on when the work area is entered and which immediately shuts down the industrial robot in the event of uncontrolled movements thereof. According to the invention, the speed of the drive motors (4, 6, 10, 13) permissible during program operation is monitored and, if exceeded, the power supply to the output stages (14 to 17) of the drive motors (4, 6, 10, 13) is immediately switched off. <IMAGE>
IPC 1-7
IPC 8 full level
B25J 9/18 (2006.01); B25J 19/06 (2006.01)
CPC (source: EP)
B25J 19/06 (2013.01)
Designated contracting state (EPC)
CH FR GB LI SE
DOCDB simple family (publication)
EP 0086432 A2 19830824; EP 0086432 A3 19850522; EP 0086432 B1 19901219; DE 3205672 A1 19830825; DE 3205672 C2 19920716
DOCDB simple family (application)
EP 83101149 A 19830207; DE 3205672 A 19820217